Manifolding sheet material



May 30, 1950 J. D. WILSON MANIFOLDING SHEET MATERIAL Filed July 13, 1945Patented May 30, 1950 UNITED STATES ATENT OFFICE.

. 3 Claims. 1

iThlS invention; relates generally to the art of ;manifolding and isdirected particularly to improvements in the ,preparation of certaintypes Jot-sheets; for use inthe manufacture of onetime :carbonsnap-.a-part forms, sometimes known, as snap-sets.

ln the manufacture of snap-sets or snap-amart" forms aspracticed by thesmall printer, as

edistinguished from the large manufacturer who has the large andexpensive mechanical equip- :ment togturnout such sets in-batches. of25,000 am more, two methods may be employed.

In the ,first method-which the,- so-called small sheetsand the sheetsare-easily extracted. ,After :thesets are gathered with the carbonsheetsinterleaved, they are jogged so as to bring allof *thesheets,including the carbonsheets, flush, .or even at the top of thesets.Stacks of these arethen placed under weights ,anda padding .compound isbrushed on and the assembled sheets ,-.are thencut downinto sets ofdesired ,size. This, ,method is unsatisfactory because ,the sets, are.easilybrokenapart for the reasonthatthe pad- .ding compounds, does notpenetrate deep enough .a to givethe innerrgummed feature that users of.the sets prefer.

.The second method which the small ,printer -mey .and preferably does,employ is the, inner- ,gumming method. I-Iere, ,after the printing and;perforating is accomplishedtheuse of a marginal ,lgluer ,and threeoperators is required, one to mfeedthesheetswand two, to assemble.,..method the ,carbon sheets are cute full inch In this .shorter. thanthe printed sheets and. the printed sheets are provided atthe tops witha line about half-way between the top edge and the snap In assembling,the assembler places the bottom.

sheet of a set in a gathering rack and upon this places asheet of carbonpaper with the top edge I at the carbon marker line, which position ofthe .carbon sheet places the bottom edge of the sheet about five-eighthsof an inch from the bottom.

edge of the underlying form sheet. The top =sheet.is then, provided,upon its undersideswith .a .stripof glue which is. of sufficientwidth.. to adhere, to thebottom sheet and toe portion of the back of thecarbon sheetorpaper. This procedure ,isrepeated until the, set iscomplete. However, thisoperationuis very slow and requires ,,considerable shill to.be accomplishedwith ,any speed.

In the light of the foregoingit is anobject of the present invention to,provide a novel gummed carbon orscopy. sheet so .that the sets. made upofthe carbonor cop-y sheetsand other sheets, maybe gathered by the usualbindery,method andcaused to adhere together bythe application ofsteam orby. applying moisture in some other manner as by the use, of a brush,sponge, sprayer or the like whereby there will beeliminated, many of theproblems now confronting the small manufacturer of articles of thischaracter.

Anotherobject of the invention is to provide a, carbon or copy sheet,for the purpose described, manufactured with a marginal strip providedwith perforations and with an application of adhesive overlying orfilling such perforations whereby upon the assembling ,ofthe copy sheetwith othersheets, the application of moistureto the edge of theassembled group of sheets along said strip will cause the adhesive tobond f the strip portion of the copying sheet with the aid-- jacentsheets between which the copying sheet lies.

A further object of the invention is to provide acarbon or copyin gsheet with a marginal strip of adhesive applied at the time of theapplication of the copying material to the sheet, and withaperturesinsaid marginal strip through which the applied adhesive mayflow, the apertures being arranged in staggered relation whereby uponthe trimming of the carbon sheets preparatory to assembly the adhesivefilled apertures of the carbon or copying sheets will be cut throughleaving portions of the adhesive exposed at the edge of the sheet sothat when moisture is applied to the assembled sheets it will soften theadhesive and cause the latter to flow in between the opposed andcontacting surfaces of the several sheets making up the set.

The invention will be best understood from a consideration ofthefollowing detailed description taken in connectionwith theaccompanying drawings forming a part of the specification, with theunderstanding, however, that the'invention is not confined to a strictconformity ,Wlth the showing of the drawings but maybe changed ormodified so long as such changes or modifications mark no materialdeparture from the salient features of the invention as expressed in theappended claims.

In the drawings:

Figure 1 is a view illustrating diagrammatically the initial formationof a carbon sheet as a ribbon having carbon-free strips extendinglengthwise thereof.

Figure 2 is a view in plan of a single formed carbon sheet as cut fromthe ribbon and prior to perforating the gummed edge area.

Figure 3 is a perspective view of a portion of a pad showing a carbonsheet in place.

Figure 4 is a view illustrating a portion of the gummed area of a carbonsheet showing the apertures filled with gum.

Figure 5 is a fragmentary view of the perforated gummed area of thesheet showing the apertures free of gum and before trimming the sheetfor use.

Figure 6 is a sectional view on an enlarged scale through a portion ofthe gummed area of a sheet and through an aperture showing the gumfilling in the aperture.

in suitable lengths and each is later cut by the printer or other personusing the same, to the proper or desired size. These strips of the sheetwhich are left uncoated with the copying material receive the adhesiveor gum when the copying sheets are assembled in the manufacture of thepreviously referred to one time carbon snap-apart forms. In someinstances the sheet may be i formed with a central longitudinal carbonfree strip.

In accordance with the present invention it is proposed to provide thesheet material, designated Ill, and which is wound up into a roll I I asthe carbon is applied thereto. with the longitudinal carbon free edgestrip l2 to which a coating of gum adhesive M is applied eithersimultaneously with the application of the carbon material orsubsequently. Where the sheet or ribbon of paper is provided with thecentral carbon free strip l3, this too may be supplied with the gumcoating either at the time of applying the carbon, or later, as may befound most desirable.

In addition to providing the strips or bands of adhesive material alongthe edges of the carbon sheet, the sheet where the gum or adhesive isapplied, is first provided with rows of apertures I5. The apertures ofone row are offset from or in staggered relation with the apertures ofthe next adjacent row so that while the apertures will not merge, theyoverlap a line extending longitudinally of the row and consequently whenthe sheet is cut or trimmed along a line paralleling the adhesive coatedstrip or band. the trim ming knife will cut through a row of theapertures regardless of where the cut is made between the free edge ofthe sheet and the adjacent edge of the carbon coating.

When the strip sheet of copy material is cut up into the individualsheets, designated Hi, one edge of such single or individual sheets willhave the gummed strip or border portion or selvage.

In manufacturing the snap-sets or forms, the

carbon or copying sheets will be assembled in the proper order withrecord sheets and the assembler needs then only to apply moisture in asuitable manner to form the completed inner gummed snap-set. When theuser trims the gummed part of the carbon sheet, which is done beforeassembling the set, he cuts through the gum or adhesive filled holes I5which, as previously stated, are staggered so that any trimming will cutthrough one row of holes, thereby leaving gum exposed to readily adhereto the sheets above and below and to act as a spreading agent of themoisture which would spread to that portion of the gummed copying sheetthat is not perforated. This will create or form a more or less solidlyglued top the entire length of the form.

It is contemplated as being within the scope of the present invention toapply the adhesive to one face or to both faces of the carbon or copyingsheet and while it is preferred that the holes or openings in thecopying sheet be filled with the adhesive material, they may remainunfilled without defeating the object of the invention.

A reason for providing the copying sheets-With one side only gummed isthat carbon sets are frequently made with an extra carbon sheet on thetop or bottom of the set that they may register over or under certainledger sheets, pay roll cards or bookkeeping records that are used withseveral shipping orders or records.

Figure 3 illustrates a carbon snap-set which is generally designated ll.These snap-sets are made, as previously stated, by interleaving andgumming of sheets of one time carbon between sheets of printed paper,the printed paper sheets being designated it. These printed paper sheetsare perforated along the line l9 adjacent the top edge of the set sothat when the printed page or form has been filled in or typed, a quicksnap will separate the printed form from the carbon sheet. The carbon,adhering to that part of the form which has been glued to the top of thecarbon sheet, is then discarded so that the user of the form does nothave to touch the carbon and is not likely to have his hands soiled.

As previously explained, while other methods have been used heretoforefor securing-the carbon sheets and the printed paper sheets together,the only method which has been found satisfactory for the'small printerwho does not have large and. expensive rotary equipment, is the handmethod of assembling the sheets and applying adhesive to the surfaces ofthe sheets along one edge of the form so that the completed form is fiatand it can be easily passed through a typewriting machine without havingthe sheets break apart. This hand assembling method is, however, slowand expensive whereas by providing carbon sheets made or manufacturedin'accordance with the present invention, such carbon sheets, and theprinted sheets can be assembled easily and quickly and be made topermanently join together by the mere application of moisture along theedge of the form where the gummed edge portions of the carbon sheetslie.

I claim:

1. As an article of manufacture a paper sheet having the major portionof one side coated. with a copying substance, the remaining portioncomprising a relatively narrow strip along one edge, said strip portionhaving rows of perforations therein, a moisture absorbing adhesivecoating covering said strip, and one row of perforations :being openthrough the adjacent edge of the sheet.

2. An article of the character stated in claim 1, REFERENCES CITEDwherein the perforations of one row are in stag The following referencesare of record in the gered relation with the perforations of an adjameof this patent: cent row.

3. An article of manufacture as stated in claim 5 UNITED STATES PATENTS1, wherein the perforations of one row are in staggered relation withthose of the adjacent row Number Name Date and the rows of perforationsare so arranged that 2,226,722 Jones Dec. 31, 1940 the perforations ofone row will each have a por- 2,260,602 Brenn Oct. 28, 1941 tion lyingbetween perforations of an adjacent 0 2,263,435 Brenn Nov. 18, 1941 row.2,273,005 Beach Feb. 17, 1942 JOSEPH D. WILSON.

